CN217002854U

CN217002854U - Vehicle shock absorber capable of automatically adjusting force value difference

Info

Publication number: CN217002854U
Application number: CN202221559381.3U
Authority: CN
Inventors: 徐彦芳; 杨京; 宋冬冬
Original assignee: Henan Tiankhan Technology Co ltd
Current assignee: Henan Tiankhan Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-07-19
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a vehicle shock absorber capable of automatically adjusting the force value difference, which relates to the technical field of shock absorbers and comprises a cylinder body, wherein a piston rod is connected inside the cylinder body in a sliding manner, the piston rod penetrates through the cylinder body in a sliding manner and extends to the outside of the cylinder body, one end of the piston rod, which extends to the inside of the cylinder body, is fixedly provided with a piston assembly, and the piston assembly is electrically connected with a connecting wire, when the piston assembly moves upwards, magnetorheological fluid inside a liquid cylinder enters the inside of the cylinder body through an oil return pipe and is monitored through a first flowmeter, so that the monitoring on the piston assembly is convenient when the piston assembly moves upwards or downwards, the ascending or descending resistance value of the shock absorber is convenient to control, a user is convenient to control the damping force of the shock absorber, and the stability of the shock absorber during shock absorption and during ascending and descending is convenient to balance, thereby improving the performance of the shock absorber.

Description

Vehicle shock absorber capable of automatically adjusting force value difference

Technical Field

The utility model relates to the technical field of shock absorbers, in particular to a vehicle shock absorber capable of automatically adjusting a force value difference.

Background

The shock Absorber (Absorber) is used to suppress the shock when the spring absorbs the shock and then rebounds and the impact from the road surface. The damping device is widely used for walking vehicles, and is used for accelerating the attenuation of the vibration of a vehicle frame and a vehicle body so as to improve the running smoothness of the walking vehicles. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping.

In some prior publications, the electromagnet generates a magnetic field after being electrified to adsorb iron powder mixed in magnetorheological fluid, a piston hole is blocked to a certain extent, the resistance of the piston assembly moving in the magnetorheological fluid is increased, the magnetic field intensity of the electromagnet can be increased by increasing the current led into the electromagnet, the electromagnet can adsorb more iron powder, the blocking area of the piston hole is larger, the resistance of the piston assembly moving in the magnetorheological fluid is larger, and the damping force of the shock absorber is larger.

However, when some existing shock absorbers are used, the piston rod cannot be well sensed to move upwards or downwards, and then the ascending resistance or the descending resistance of the shock absorber cannot be well controlled, and then shock absorption cannot be well performed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one technical problem in the prior art, provides a vehicle shock absorber with a poor automatic adjusting force value, and can solve the problems that when the shock absorber is used, the piston rod cannot be well sensed to move upwards or downwards, the ascending resistance or the descending resistance of the shock absorber cannot be well controlled, and the shock absorber cannot be well damped.

In order to achieve the purpose, the utility model provides the following technical scheme: a vehicle shock absorber capable of automatically adjusting power value difference comprises a cylinder body, wherein a piston rod is connected inside the cylinder body in a sliding mode, the piston rod penetrates through the cylinder body in a sliding mode and extends to the outside of the cylinder body, a piston assembly is fixedly installed at one end, extending to the inside of the cylinder body, of the piston rod, a connecting wire is electrically connected to the piston assembly, penetrates through the piston rod and extends to the outside of the piston rod, the piston assembly is connected inside the cylinder body in a sliding mode, a piston hole is formed in the surface of the piston assembly, an electromagnet is fixedly installed inside the piston assembly and is electrically connected with the connecting wire, an oil inlet pipe and an oil return pipe are fixedly installed on the cylinder body and are communicated with the inside of the cylinder body, one ends, far away from the cylinder body, of the oil inlet pipe and the oil return pipe are communicated with a liquid cylinder, magnetorheological fluid is installed inside the liquid cylinder, the oil inlet pipe, the oil return pipe and the cylinder body, and an oil-gas partition plate is connected inside the liquid cylinder in a sliding mode, the liquid cylinder is provided with an air tap.

Preferably, a first throttle valve is installed at one end, close to the cylinder body, of the oil inlet pipe, and a second flowmeter is fixedly installed at one end, far away from the cylinder body, of the oil inlet pipe.

Preferably, a first flowmeter is fixedly mounted at one end, close to the cylinder body, of the oil return pipe, and a second throttle valve is fixedly mounted at one end, far away from the cylinder body, of the oil return pipe.

Compared with the prior art, the utility model has the beneficial effects that:

(1) this poor vehicle shock absorber of automatically regulated power value, when piston assembly upwards moves, the inside magnetorheological suspensions of liquid cylinder inside enters into the inside of cylinder body through oil return pipe, and then monitor through first flowmeter, and then be convenient for go upward or down piston assembly, monitor, and then be convenient for go upward or down resistance value to the shock absorber and control, and then the convenient to use person controls the resistance size of shock absorber, and then be convenient for balanced shock absorber when the shock attenuation with go upward stability when pushing down, and then improve the performance of shock absorber.

(2) This poor vehicle shock absorber of automatically regulated power value, the electro-magnet is switched on, the electro-magnet produces magnetic field and adsorbs the iron powder of magnetorheological suspensions in the cylinder body after switching on, form certain the stopping to the piston hole, increase piston assembly is at the inside resistance that removes of cylinder body magnetorheological suspensions, through the electric current that increases the access electro-magnet, can increase the magnetic field intensity of electro-magnet, and then be convenient for adjust the damping force size of shock absorber, improve the shock attenuation effect, be convenient for adjust the damping force size of shock absorber according to the demand that uses, convenient to use person operates.

Drawings

The utility model is further illustrated with reference to the following figures and examples:

FIG. 1 is a schematic view of a vehicle shock absorber for automatically adjusting a force difference according to the present invention;

fig. 2 is a schematic view of a piston assembly of the present invention.

Reference numerals: 1. a cylinder body; 2. a piston assembly; 3. a connecting wire; 4. a piston rod; 5. a first flow meter; 6. a first throttle valve; 7. an oil inlet pipe; 8. a second flow meter; 9. an air tap; 10. a liquid cylinder; 11. an oil-gas separator plate; 12. magnetorheological fluid; 13. a second throttle valve; 14. an oil return pipe; 15. a piston bore; 16. an electromagnet.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an automatic vehicle shock absorber ware that adjusting power value is poor, including cylinder body 1, the inside sliding connection of cylinder body 1 has piston rod 4, piston rod 4 slides and runs through cylinder body 1 and extend to the outside of cylinder body 1, piston rod 4 extends to the inside one end fixed mounting of cylinder body 1 has piston assembly 2, electric connection has connecting wire 3 on the piston assembly 2, connecting wire 3 runs through piston rod 4 and extends to piston rod 4's outside, piston assembly 2 is at the inside sliding connection of cylinder body 1, piston assembly 2 has seted up piston hole 15 on the surface, piston assembly 2's inside fixed mounting has electro-magnet 16, electro-

magnet

16 and 3 electric connection of connecting wire.

When adjusting 2 descending damping force of piston assembly, be connected with external power source through connecting wire 3, and then make electro-magnet 16 switch on, electro-magnet 16 produces magnetic field and adsorbs the iron powder of 12 inside magnetorheological suspensions in the cylinder body 1 after switching on, form certain the blockking to piston hole 15, increase piston assembly 2 is at the resistance of 1 inside removal of cylinder body, through increasing the electric current that lets in electro-magnet 16, can increase electro-magnet 16's magnetic field intensity, and then be convenient for adjust the damping force of bumper shock absorber, improve the shock attenuation effect, be convenient for adjust the damping force of bumper shock absorber according to the demand of using, convenient to use person operates.

Fixed mounting has into oil pipe 7 and oil return pipe 14 on cylinder body 1, it all is linked together with the inside of cylinder body 1 to advance oil pipe 7 and oil return pipe 14, the one end intercommunication that advances oil pipe 7 and oil return pipe 14 and keep away from cylinder body 1 has liquid cylinder 10, advance oil pipe 7, oil return pipe 14 and cylinder body 1's inside all is provided with magnetorheological suspensions 12, the inside sliding connection of liquid cylinder 10 has oil gas baffle 11, install air cock 9 on the liquid cylinder 10, advance oil pipe 7 and be close to one of cylinder body 1 and install first choke valve 6, advance oil pipe 7 and keep away from the one end fixed mounting of cylinder body 1 and have second flowmeter 8, the one end fixed mounting that oil return pipe 14 is close to cylinder body 1 has first flowmeter 5, the one end fixed mounting that oil return pipe 14 keeps away from cylinder body 1 has second choke valve 13.

When the piston assembly 2 is pressed downwards, the piston hole 15 on the piston assembly 2 is blocked by iron powder, so that the magnetorheological fluid 12 inside the cylinder body 1 enters the liquid cylinder 10 through the oil inlet pipe 7, the magnetorheological fluid 12 inside the cylinder body 1 can only flow into the liquid cylinder 10 in a one-way manner due to the normal installation of the first throttle valve 6, the magnetorheological fluid 12 entering the liquid cylinder 10 through the cylinder body 1 is monitored through the second flowmeter 8, the magnetorheological fluid 12 inside the liquid cylinder 10 is monitored due to the reverse installation of the second throttle valve 13, when the piston assembly 2 moves upwards, the magnetorheological fluid 12 inside the liquid cylinder 10 enters the cylinder body 1 through the oil return pipe 14, the monitoring is further carried out through the first flowmeter 5, the piston assembly 2 is further conveniently monitored in the ascending or descending manner, the ascending or descending resistance value of the shock absorber is further conveniently controlled, and a user can conveniently control the resistance value of the shock absorber, and then be convenient for balanced bumper shock absorber when the shock attenuation with rise the time stability of pushing down, and then improve the performance of bumper shock absorber.

The current that releases when piston rod 4 and piston assembly 2 go upward is big than the current that releases when descending, and the current that releases when descending is big than the current that releases when going upward, and then is convenient for control under two kinds of modes, is convenient for control the resistance value of piston assembly 2, improves absorbing performance.

When piston rod 4 and piston assembly 2 are descending, examine the monitoring through second flowmeter 8 to advancing the inside flow of oil pipe 7, when second flowmeter 8 perception piston assembly 2 is descending, give 3 signals of connecting wire through second flowmeter 8, and then the electric current of carrying to the inside of electro-magnet 16 through connecting wire 3 is 500 milliamperes, when first flowmeter 5 is in perception piston assembly 2 rebound, 3 signals of connecting wire are given to first flowmeter 5, and then the electric current of carrying to the inside of electro-magnet 16 through connecting wire 3 is 1000 milliamperes, and then make the resistance that piston assembly 2 rose be greater than the resistance that piston assembly 2 descends, and then resistance value that descends and rises to piston assembly 2 is different, and then be convenient for adjust the bumper shock absorber.

Meanwhile, the scheme can be controlled through application number 202022138317.5, and then the resistance value can be adjusted.

The working principle is as follows:

when using, when adjusting the descending damping force of piston assembly 2, be connected with external power source through connecting wire 3, and then make electro-magnet 16 circular telegram, electro-magnet 16 produces the magnetic field and adsorbs the inside iron powder of magnetorheological suspensions 12 of mixing in 1 cylinder body after circular telegram, form certain the blockking to piston hole 15, increase piston assembly 2 is at the resistance of 1 inside removal of cylinder body, through increasing the electric current that lets in electro-magnet 16, can increase electro-magnet 16's magnetic field intensity, and then be convenient for adjust the resistance size of bumper shock absorber.

When the piston assembly 2 is pressed downwards, since the piston hole 15 on the piston assembly 2 is blocked by the iron powder inside the magnetorheological fluid 12, so that the hydraulic oil in the cylinder body 1 enters the magnetorheological fluid 12 through the oil inlet pipe 7, because the first throttle valve 6 is positively arranged, the magnetorheological fluid 12 in the cylinder body 1 can only flow into the liquid cylinder 10 in a one-way manner, then the magnetorheological fluid 12 entering the liquid cylinder 10 from the cylinder body 1 is monitored through the second flowmeter 8, since the second throttle 13 is installed reversely, when the piston assembly 2 moves upward, the magnetorheological fluid 12 inside the fluid cylinder 10 enters the interior of the cylinder body 1 through the oil return pipe 14, and then monitor through first flowmeter 5, and then be convenient for go up or down to piston assembly 2 when, monitor, and then be convenient for go up or down resistance value to the bumper shock absorber and control.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a poor vehicle shock absorber of automatically regulated power value, includes cylinder body (1), its characterized in that: the internal sliding connection of the cylinder body (1) is provided with a piston rod (4), the piston rod (4) penetrates through the cylinder body (1) in a sliding manner and extends to the outside of the cylinder body (1), one end of the piston rod (4) extending to the inside of the cylinder body (1) is fixedly provided with a piston assembly (2), the piston assembly (2) is electrically connected with a connecting wire (3), the connecting wire (3) penetrates through the piston rod (4) and extends to the outside of the piston rod (4), the piston assembly (2) is connected with the cylinder body (1) in an internal sliding manner, the surface of the piston assembly (2) is provided with a piston hole (15), the internal fixed mounting of the piston assembly (2) is provided with an electromagnet (16), the electromagnet (16) is electrically connected with the connecting wire (3), the cylinder body (1) is fixedly provided with an oil inlet pipe (7) and an oil return pipe (14), the oil inlet pipe (7) and the oil return pipe (14) are both communicated with the inside of the cylinder body (1), one end of the oil inlet pipe (7) and one end of the oil return pipe (14), which are far away from the cylinder body (1), are communicated with a liquid cylinder (10), magnetorheological fluid (12) is arranged inside the liquid cylinder (10), the oil inlet pipe (7), the oil return pipe (14) and the cylinder body (1), an oil-gas partition plate (11) is connected inside the liquid cylinder (10) in a sliding mode, and an air nozzle (9) is installed on the liquid cylinder (10).

2. The vehicle shock absorber of automatically adjusting a force value difference according to claim 1, wherein: one end of the oil inlet pipe (7) close to the cylinder body (1) is provided with a first throttle valve (6), and one end of the oil inlet pipe (7) far away from the cylinder body (1) is fixedly provided with a second flowmeter (8).

3. The vehicle shock absorber of automatically adjusting force value difference according to claim 1, wherein: one end of the oil return pipe (14) close to the cylinder body (1) is fixedly provided with a first flowmeter (5), and one end of the oil return pipe (14) far away from the cylinder body (1) is fixedly provided with a second throttle valve (13).